| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/14/19 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 12 | |
| 02/14/19 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 02/14/19 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 10 | |
| 02/11/19 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 5 | |
| 02/04/19 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 10 | |
| 01/07/19 | S-8 POS | Form S-8 POS: Post-effective amendment to a S-8 registration statement | 3 | |
| 01/07/19 | 15-12B | Form 15-12B: Securities registration termination [Section 12(b)] | 2 | |
| 01/07/19 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 19 | |
| 01/02/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/02/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |
